OrganizationActive
Phyllis S. Ritchie MD PC
NPI 1861635906 · Clinic/Center · Oxnard, CA
Phyllis S. Ritchie MD PC is a Clinic/Center organization in Oxnard, CA (NPI 1861635906).
Provider details
- NPI number
- 1861635906
- Entity type
- Organization
- Primary specialty
- Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Yolanda Mcgaster, Billing Manager(708) 335-1848
- License
- G84220 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
1100 W Gonzales Rd
Oxnard, CA 93036-3336
Phone: (805) 278-9599
Street-level locationGet directions
Mailing address
1100 W Gonzales Rd
Oxnard, CA 93036-3336
Registry dates
- Enumerated
- 2009-04-18
- Last updated
- 2009-04-18
Frequently asked questions
- What is Phyllis S. Ritchie MD PC's NPI number?
- Phyllis S. Ritchie MD PC's National Provider Identifier (NPI) is 1861635906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Phyllis S. Ritchie MD PC?
- Phyllis S. Ritchie MD PC is classified in the NPPES registry as Clinic/Center (Ambulatory Health Care Facilities).
- Where is Phyllis S. Ritchie MD PC located?
- Phyllis S. Ritchie MD PC's practice location on file with NPPES is 1100 W Gonzales Rd, Oxnard, CA 93036-3336.
- What is Phyllis S. Ritchie MD PC's phone number?
- The practice phone number listed in the NPPES registry for Phyllis S. Ritchie MD PC is (805) 278-9599.
- Who is the authorized official for Phyllis S. Ritchie MD PC?
- The authorized official listed on Phyllis S. Ritchie MD PC's NPPES record is Yolanda Mcgaster, Billing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Phyllis S. Ritchie MD PC's NPI active?
- Yes — Phyllis S. Ritchie MD PC's NPI (1861635906) is active in the NPPES registry as of the last update on 2009-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.